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Article Dans Une Revue Polymer Année : 2020

Polynorbornene latex synthesis by UV-triggered Ring-Opening Metathesis Polymerization in miniemulsion

Résumé

An innovative route based on a novel photo-latent ROMP initiator has been explored to synthesize polynorbornene latex particles in miniemulsion. Operation conditions were strongly improved by the use of an annular LED photo-reactor, increasing the uniformity of radiation distribution and enabling to control atmosphere and stirring throughout irradiation. Several parameters (droplet size, irradiance, pre-catalyst structure) were studied in order to improve the monomer conversion profiles, which eventually led to the production of latex with high norbornene conversion (>90%) and 10% solids content. Particular attention was paid to the polymer microstructure, which was found to be highly dependent on the type of initiation mechanism.
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Dates et versions

hal-02467679 , version 1 (10-02-2020)

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Loïc Pichavant, Patrick Lacroix-Desmazes, Abraham Chemtob, Julien Pinaud, Valérie Héroguez. Polynorbornene latex synthesis by UV-triggered Ring-Opening Metathesis Polymerization in miniemulsion. Polymer, 2020, 190, pp.122200. ⟨10.1016/j.polymer.2020.122200⟩. ⟨hal-02467679⟩
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